Ishikari Nabe (Hokkaido — Salmon and Miso Hot Pot)

Ishikari nabe is Hokkaido's most celebrated hot pot — named for the Ishikari River basin where Hokkaido's salmon population was historically so abundant that it sustained the Ainu indigenous people for centuries before Japanese settlement. The dish brings salmon, tofu, vegetables, and potato together in a miso-enriched broth that reflects Hokkaido's dual food identity: the marine richness of its coasts and the dairy-influenced, hearty cooking of its agricultural interior. The defining characteristic of ishikari nabe is the use of sake lees (sake kasu) as a secondary seasoning alongside the miso base. Sake kasu — the pressed solid residue from sake production — adds a fermented depth, gentle sweetness, and creamy body to the broth that distinguishes it from any other miso hot pot style. Hokkaido is Japan's largest sake kasu producer by virtue of its active brewery industry, and the ingredient's inclusion is both practical (proximity to supply) and flavourful. Salmon used in ishikari nabe must be fresh, not cured or smoked. The fish is cut into thick bone-in pieces so that the collagen and fat in the bones enrich the broth as it simmers. Unlike delicate Japanese broths that would be overpowered by strong fish, the miso base of ishikari nabe absorbs and integrates the salmon's oils and oceanic richness into a cohesive whole. Vegetables — hakusai (napa cabbage), potato, daikon, burdock, carrot — are added in order of cooking time, with the potato (a Hokkaido staple) often surprising visitors with its presence in a Japanese hot pot. Butter is sometimes added to the broth as a contemporary variation, reflecting the dairy culture of Hokkaido's agricultural western regions.